Problem with dispatcher and Css

I am trying to link a servlet with a jsp using:

request.getRequestDispatcher("/jsp/Mostrar_apartamentos.jsp").forward(request, response);

The problem is that when it runs it shows me the jsp without any CSS, I changed the css routes, because I had them relative and I read that could be the problem, but even so the server responds with a 404 error . So I have the Css:

<link rel="stylesheet" href="\alq_apt\WebContent\jsp\css\superfish.css">

Greetings and thanks